CVE-2018-18586

MEDIUM

Description

** DISPUTED ** chmextract.c in the chmextract sample program, as distributed with libmspack before 0.8alpha, does not protect against absolute/relative pathnames in CHM files, leading to Directory Traversal. NOTE: the vendor disputes that this is a libmspack vulnerability, because chmextract.c was only intended as a source-code example, not a supported application.

References

https://bugs.debian.org/911639

https://github.com/kyz/libmspack/commit/7cadd489698be117c47efcadd742651594429e6d

https://security.gentoo.org/glsa/201903-20

https://www.openwall.com/lists/oss-security/2018/10/22/1

Details

Source: MITRE

Published: 2018-10-23

Updated: 2019-04-03

Type: CWE-22

Risk Information

CVSS v2.0

Base Score: 5

Vector: AV:N/AC:L/Au:N/C:P/I:N/A:N

Impact Score: 2.9

Exploitability Score: 10

Severity: MEDIUM

CVSS v3.0

Base Score: 5.3

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

Impact Score: 1.4

Exploitability Score: 3.9

Severity: MEDIUM